| Issue | Solution | |-------|----------| | | Close background apps, avoid charging while gaming, remove thick case. | | Fingerprint not working | Re-register fingers (scan same finger twice). Clean sensor with cloth. | | "Unfortunately, Settings has stopped" | Go to Settings → More Settings → Apps → All → Settings → Clear Data . | | Notifications not showing | Settings → Status bar & notifications → App notifications → Enable all . Also check Settings → Battery → High background power consumption → disable restriction for that app . | | Can't install apps from Play Store | Clear Play Store data. Check date/time. Ensure "Unknown sources" is OFF (for security). | | Slow charging | Use original charger (5V/2A). MicroUSB cable may be faulty. Clean charging port. | | Auto-rotate not working | No gyroscope – auto-rotate only works in certain apps (like YouTube fullscreen). Won't work in Chrome or homescreen. |
The MediaTek Helio P22 octa-core processor, clocked at 2.0GHz, was designed on a 12nm process for better power efficiency. vivo y83